D A. Garden Soil Analysis Kit
Measure the concentration of nitrogen, phosphorus and potassium and level of pH
in soil with this simple-to-use kit. Includes two handbooks.
B. How Soil Is Formed—Student Laboratory Kit
Perform a series of hands-on experiments to understand the processes of rock and
soil formation and investigate the results of erosion, glacial changes and chemical
C. Permeability, Porosity and Soil Moisture—
Student Laboratory Kit
Determine the permeability and porosity of soil by measuring how easily air and
water move through soil and the volume of air and water the soil will hold.
D. Lead in Soil—Student Laboratory Kit
Provide a realistic analysis of contaminated soil by discovering that even
“healthy-looking” soil can contain traces of a toxic metals remaining decades
after initial contamination.